d/32248 by mxfh

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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    u(t) is called 60 times per second.
    t: Elapsed time in seconds.
    S: Shorthand for Math.sin.
    C: Shorthand for Math.cos.
    T: Shorthand for Math.tan.
    R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
    c: A 1920x1080 canvas.
    x: A 2D context for that canvas.

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mxfh

remix of d/32247 by u/rodrigo.siqueira

function u(t) {

c.width|=h=C(t)
with(x)for(h,transform(X=~~(9+h*9),h,C(167/h),X,960,600);X--;fill(new Path2D(`M${T(h+X)-9} 9 h25 l-3-5 h-19`)))rotate(2.094)

Aug 14 2024 11:24 PM UTC

}// 140/140

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u/rodrigo.siqueira

It is possible to save 2 characters by changing the beginning of the code this way: with(x)for(reset(h=C(t)),h,... I found that x.reset() is the same as c.width|=0 but shorter. So, I usually don't use c.width|=0 trick anymore. And you can add code inside parentheses so you don't need the "enter" or ";" characters. E.g. : x.reset(code here)


      u(t) is called 60 times per second.
      t: elapsed time in seconds.
      c: A 1920x1080 canvas.
      x: A 2D context for that canvas.
      S: Math.sin
      C: Math.cos
      T: Math.tan
      R: Generates rgba-strings, ex.: R(255, 255, 255, 0.5)

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